I can't help you. Sorry. But, if you can't find what you need here, try the astrophotography forum. They should be able to shine some light on this matter.

-- hide signature --

Originally posted by brianj-"As to why we come here, I have no idea, the forums are just a shadow of their old selves, in fact the Beginners Forum should be renamed into 'What camera should I buy' forum.Anyway it keeps a lot of people off the streets and that is a good thing."Anonymous-- "I'll be glad to discuss composition with you. As it is those "special moments" you record remind me of bowel movements."